Wood-base composite thickening plates and manufacture method thereof

A board and wood-based technology, which is applied in the field of man-made board manufacturing, can solve the problems of reducing the amount of sawing at the edge of the board, and achieve the effects of accelerating heat conduction, reducing the amount of sawing, and improving dimensional stability and corrosion resistance

Active Publication Date: 2012-10-24
ERDOS CITY HUALIN SALIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above disadvantages, to provide a wood-based composite thickened board composed of fast-growing wood, phenolic resin, and bentonite, which is composed of three organic polymer materials, has high hardness and does not deform, and realizes vacuum dehydration and dipping once. The completed method replaces the method of dipping wood veneer after drying, replaces manual paving with mechanical paving to overcome the defect of uneven paving of the billet, and uses preheating to increase the temperature o

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] A wood-based composite thickened board, which is characterized in that it is composed of three organic high-content materials accounting for 65-70% of the total weight of the board, 18-20% phenolic resin, and 12-15% bentonite. Gluing and heat treatment are used to make wood-based composite thickened board, the thickness of the board is 40mm-200mm, and the size of the board can be set as required.

[0019] The specific implementation steps are as follows:

[0020] The size of the pressed sheet is 2500×630×150mm and the density is 1.05g / cm 3

[0021] (1) Resin preparation: Use a mixing tank with a stirrer for resin preparation. According to the required amount, 46% phenolic resin and 14% liquid bentonite are put into the mixing tank in proportions, and an appropriate amount of water is added. Stir it evenly with a device to prepare a C-type water-soluble phenolic resin mixed glue with a solid content of 30%;

[0022] (2) Vacuum dehydration and dipping of wood v...

Example Embodiment

[0029] Example 2

[0030] A wood-based composite thickened board, which is characterized in that it is composed of three organic high-content materials that account for 65-70% of the total weight of the board, 18-20% phenolic resin, and 12-15% bentonite. Gluing and heat treatment are used to make wood-based composite thickened board, the thickness of the board is 40mm-200mm, and the size of the board can be set as required.

[0031] The specific implementation steps are as follows:

[0032] The size of the pressed sheet is 1250×630×200mm and the density is 1.1g / cm 3

[0033] (1) Resin preparation: Use a mixing tank with a stirrer for resin preparation. According to the required amount, put 48% phenolic resin and 12% liquid bentonite in the mixing tank in proportion, add appropriate amount of water, and stir. Stir it evenly with a device to prepare a C-type water-soluble phenolic resin mixed glue with a solid content of 30%;

[0034] (2) Vacuum dehydration and dipping of wood veneer: U...

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Abstract

The invention relates to wood-base composite thickening plates and a manufacture method thereof. The wood-base composite thickening plates are composed of three organic high polymer materials of fast-growing wood accounting for 65-70% of the total weight of the plates, 18-20% of phenolic resin and 12-15% of bentonite. The thickness of the plates ranges from 40mm to 200mm, and the size of the breadth of the plates can be set according to requirements. The manufacture method achieves replacement of a method of drying a veneer and dipping glue with a method of finishing vacuum dehydration and glue dipping by one step, manual paving is replaced with mechanical paving to overcome unevenness of blank paving, a method of preheating to increase blank temperature to quicken heat conducting during plate lamination is used, limiting bottleneck of producing thickened plates is broken through, and continuous production of the thickened plates is achieved. The high-quality wood-base composite material for improving the conditions that natural wood resource is shortened for wooden product machining industries is provided, a production method for saving energy and reducing cost is provided for application of fast-growing wood, and the wood-base composite thickening plates are favorable for protecting natural forest resource and environment simultaneously.

Description

technical field [0001] The invention belongs to the field of artificial board manufacture, and relates to a recombined wood and a manufacturing method thereof, in particular to a wood-based composite thickened board and a manufacturing method thereof. Background technique [0002] At present, with the transformation of wood resources from natural forests to artificial fast-growing forests, the development of the wood product processing industry is restricted by the shortage of natural hard wood. The method of wood reorganization is used to change the hardness and dimensional stability of fast-growing wood to replace natural wood. Hard wood is a problem that needs to be solved in the wood-based panel industry. I have two patents: ZL 2007 1 0058564.0 The manufacturing method of high-strength anti-corrosion glulam and ZL 20101 0191829.6 Simultaneous heating and pressing of steam and high-frequency dual heat sources to modify hard wood The process methods have been implemented, ...

Claims

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Application Information

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IPC IPC(8): B27K3/08B27K3/52B27N3/08B27N3/10B27N3/18
Inventor 李茂林
Owner ERDOS CITY HUALIN SALIX TECH CO LTD
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